@Midori Go through this thread for more details on that matter.

@JC2024 AFAIK Synology has a certain certified network adapters which are recommended to work with their hardware. Check the optional accessories in the Synology 1821+ spec section here (bottom of...

@Debi568 You didn't mention what's your host router ? Reset the device by pressing the reset button for about 10 seconds and try again. If this still doesn't work for you, try this troubleshooting...

@Debi568 What make and model is your host router ? WA850RE supports only 2.4GHz wireless band. When you running through the procedure do you see the host wireless networks available in the list ?

@Thody This would be the TFTP method for recovery of a bricked device, but I haven't tested this on AX series devices (it may not work as expected) - here.

@Sparks75 Yes, all three devices will be with the same SSID and password - that's the main purpose of a mesh technology. Actually in this case the satelitte routers will copy these settings from yor...